To use this Tag Heuer watch, simply set the time according to the instructions in the user manual. The unidirectional turning bezel can be used to time events during your sports activities. When wearing it, be aware that although it's shock - resistant, try to avoid strong impacts. For water - resistance, it can handle up to 200 meters of water pressure, but don't open the crown underwater. To maintain it, clean the watch regularly with a soft, dry cloth. Avoid exposing it to extreme temperatures and chemicals. Periodically, take it to an authorized service center for a full check - up and servicing to keep it in top - notch condition.